Brick



` Lc. EMLEY.

BRICK.

APPLICATION FILED APR. I2, |917- 5 wom/Toi JOSEPH c. EMLEY, E MELEosEPARK, PENNSYLVANIA.

BRICK.

Specification of lLetters Patent.

Patented Feb. 10, 1920.

Application led April 12, 1917. SeriaiNo. 161,618.

'To all 'whom z't may concern: l v

g Be it known that I, JOSEPH C. EMLEY,

i .citizen ofthe United States, and resident of Melrose Park, in thecounty of Montgomery and State of Pennsylvania, have 1nvented certainnew and useful Improve- 4 l 'binder is proportioned to effect a closements iny Bricks, of which the following is a specification.

' The invention relates to bricks having vitreous or glass faces,ad'TtlTe-object ofthe same is to provide the bricks with a backing orbody part composed of-heat-insulating material and adapted particularlyfor the outer walls of ovens and like structures, t0 prevent the escapeof heat therefrom and to overcome' deterioration of the outer e surfacethereof from an excessive temperature.

In describingl the invention in detail, refv erence is had to theaccompanying drawing, forming a part ofl this speciication,

and in which: p l

Numeral 1 designates a vitreous facing member havinghthe dovetailedledge 2 projecting from e back thereof, and interlocking with thebacking or body part 3 of the brick. l V- The vitreous facing member maybe of well-known type, formed in the usual manner; and the backing orbody part is composed vof heat-insulating material consisting ofinfusorial earth mixed with a heatresisting ce'ment binder, and moldedt0- vgether with the facing'member to' form a brick of Aconventionalsize adapted to be bonded with adjacent bricks forming the main wall ofthe structure.

The mixture of infusorial earthand to forma cellular block, and a facingmem- 'ber of relatively 4harder material anchored in. said block.

2. :A brick comprising a body portion formed of-inf11sor1al earth unitedtogether by heat-resisting cement to form a cellular block, and a facingmember of relatively harder material anchored in said block.

Signed at- New York, in the county of New York and State of Newy York,this 10th day of April, A. D. 1917. y JOSEPH C. EMLEY.

